Thermostat



FIG. 1 is a perspective view of a thermostat showing a new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side plan view thereof; and,

FIG. 7 is another side plan view thereof. 

The ornamental design for a thermostat, as shown and described. 